TM 10-4610-241-24
TO 40W4-13-42
3-39.
MOTOR (CHEMICAL FEED PUMP) REPAIR - continued.
b.
Cleaning.
WARNING
Compressed air can blow dust into the eyes. Wear goggles. Do not
exceed 30 psi (207 kPa) air pressure.
(1)
Remove loose paint from end plates (16 and 7) and stator assembly (24).
(2)
Using compressed air, blow dust and grit from stator assembly (24) and rotor (23). Wipe rotor with wiping rag.
(3)
Wipe dirt and grit from bearings (19 and 21) with wiping rag.
c.
Inspection
(1)
Inspect leads and windings of stator assembly (24) for evidence of cracked or burned insulation.
(2)
Inspect stator assembly (24) for loose or burned conducting bars.
(3)
Inspect bearings (19 and 21) for wear, binding and damaged seals.
(4)
Inspect end plates (7) and (16) for cracks.
d.
Repair.
(1)
Replace all seals and gaskets.
(2)
Replace entire motor if rotor (23) or switch cutout (22) is defective.
(3)
Replace all other parts only if defective.
e.
Assembly.
(1)
If removed, install tape (25) in capacitor cover (11).
(2)
Position retaining plate (20) and retaining ring (18) on shaft of rotor (23).
(3)
Using arbor press, install bearings (21 and 19) on shaft of rotor (23).
(4)
Install seal (17) in end plate (16).
CAUTION
Stator assembly wiring can be damaged by rotor or rotor shaft if rotor
is not installed carefully.
(5)
Carefully position rotor (23) in stator assembly (24).
(6)
Position end plate (16) on stator assembly (24).
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